1 code implementation • 22 Mar 2021 • V. Ashley Villar, Miles Cranmer, Edo Berger, Gabriella Contardo, Shirley Ho, Griffin Hosseinzadeh, Joshua Yao-Yu Lin
There is a shortage of multi-wavelength and spectroscopic followup capabilities given the number of transient and variable astrophysical events discovered through wide-field, optical surveys such as the upcoming Vera C. Rubin Observatory.
no code implementations • 21 Jan 2021 • Xiangyun Zeng, XiaoFeng Wang, Ali Esamdin, Craig Pellegrino, WeiKang Zheng, Jujia Zhang, Jun Mo, Wenxiong Li, D. Andrew Howell, Alexei V. Filippenko, Han Lin, Thomas G. Brink, Edward A. Baron, Jamison Burke, James M. DerKacy, Curtis McCully, Daichi Hiramatsu, Griffin Hosseinzadeh, Benjamin T. Jeffers, Timothy W. Ross, Benjamin E. Stahl, Samantha Stegman, Stefano Valenti, Lifan Wang, Danfeng Xiang, Jicheng Zhang, Tianmeng Zhang
We present extensive, well-sampled optical and ultraviolet photometry and optical spectra of the Type Ia supernova (SN Ia) 2017hpa.
High Energy Astrophysical Phenomena Solar and Stellar Astrophysics
no code implementations • 3 Sep 2020 • Sebastian Gomez, Edo Berger, Peter K. Blanchard, Griffin Hosseinzadeh, Matt Nicholl, V. Ashley Villar, Yao Yin
This classifier can achieve a maximum purity of about 85\% (with 20\% completeness) when observing a selection of SLSN-I candidates.
High Energy Astrophysical Phenomena
1 code implementation • 22 Apr 2019 • Lluís Galbany, Chris Ashall, Peter Hoeflich, Santiago González-Gaitán, Stefan Taubenberger, Maximilian Stritzinger, Eric Y. Hsiao, Paolo Mazzali, Eddie Baron, Stéphane Blondin, Subhash Bose, Mattia Bulla, Jamison F. Burke, Christopher R. Burns, Régis Cartier, Ping Chen, Massimo Della Valle, Tiara R. Diamond, Claudia P. Gutiérrez, Jussi Harmanen, Daichi Hiramatsu, T. W. -S. Holoien, Griffin Hosseinzadeh, D. Andrew Howell, Yiwen Huang, Cosimo Inserra, Thomas de Jaeger, Saurabh W. Jha, Tuomas Kangas, Markus Kromer, Joseph D. Lyman, Kate Maguire, George Howie Marion, Dan Milisavljevic, Simon J. Prentice, Alessandro Razza, Thomas M. Reynolds, David J. Sand, Benjamin J. Shappee, Rohit Shekhar, Stephen J. Smartt, Keivan G. Stassun, Mark Sullivan, Stefano Valenti, Steven Villanueva, Xiao-Feng Wang, J. Craig Wheeler, Qian Zhai, Jujia Zhang
Our modeling suggests that the narrow [Ca II] features observed in the nebular spectrum are associated with $^{48}$Ca from electron capture during the explosion, which is expected to occur only in white dwarfs that explode near or at the $M_{\rm Ch}$ limit.
Solar and Stellar Astrophysics High Energy Astrophysical Phenomena